Muslims believe that God had to send his message one last time because both the Jews and the Christians were ignoring it. One day, Muhammad was meditating on Mount Hirja when the angel Gabriel (the angel who speaks for God) appeared and told him would write the teaching of God. He continued to receive revelations about Islam and converted many people. In 622, the ruling tribe of Mecca exiled (kicks out) Muhammad for being too influential among citizens. He and his followers traveled around Arabia searching for a home. The city of Medina, 275 miles away from Mecca, accepted them. The Islam religion is about 1400 years old. The religion also started in 610 A.D.